Operation method of smart warning device for security

Abstract

The invention provides an operation method of a smart warning device for security. A three-dimension (3D) sensor is disposed in a static space, the 3D sensor emits a first infrared light when initially turned on, the first infrared light is reflected by the static space, and then received by the 3D sensor and recorded as a first signal. Next, the 3D sensor emits an infrared light in every intervaltimes, and the infrared light will be reflected by static space each time. The reflected feedback signals are recorded and are sequentially compared to the first signal. When the feedback signal is equal to the first signal, the 3D sensor continues to operate, and when a human body enters the static space, causing the feedback signal to be different from the first signal, the 3D sensor identifiesthe human body to get an identified information, and comparing the identified information with an authentication database saved the 3D sensor. Whether an object is a human body or not is judged in apower-saving and high-precision mode, and the protection safety is improved.

Description

technical field [0001] The present invention relates to the field of optics, especially the operation and application of an intelligent security alarm system including a 3D sensor. Background technique [0002] With the advancement of science and technology, machines gradually replace manpower and are applied in various fields of life. On the other hand, for the home security protection system, the current technology has achieved that when the camera detects that a person appears within a certain range, it can automatically send out an alarm to notify the remote user. [0003] Passive infrared sensors (PIR sensors), which are widely used in security alarm systems, still have some disadvantages. For example, the PIR sensor can only detect whether an object passes the sensing range, but cannot specifically detect whether the object is a person, an animal or other movable objects. Even if the PIR sensor is combined with a flat camera, the camera is easily affected by ambient ...

AI Technical Summary

Problems solved by technology

For example, a PIR sensor can only detect whether an object passes the sensing range, but cannot specifically detect whether the object is a person, an animal or other movable objects

Even if the PIR sensor is combined with a flat camera, the camera is easily affected by ambient light, and the picture may not be clear in an environment that is too bright or too dark

Therefore, the existing safety warning system still has room for improvement

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